function email237Check() {
	var fieldName = document.f237f.e.value
		if (fieldName.value != "") {
			if ((fieldName.length < 7) || (fieldName.indexOf('@') < 1) || ((fieldName.length - fieldName.lastIndexOf('.')) < 3)) {
				alert("Please enter a valid email address.");
				return false;       // can't be valid!
				}
			var userName = fieldName.substr(0,fieldName.indexOf('@'));
			var fqdn = fieldName.substr((fieldName.indexOf('@') + 1),(fieldName.length - 1));
			var hostDomain = new Array();
			var hdIndex = 0;
			hostDomain[hdIndex] = "";
			for (var i = 0; i < fqdn.length; i++) {
				var thisChar = fqdn.charAt(i);
				if (thisChar == '.') {
					if (hostDomain[hdIndex].length > 1) {
						++hdIndex;
						hostDomain[hdIndex] = "";
					} else {
						if ((hdIndex > 1) && (hostDomain[hdIndex].length == 1)) {
							;           // Do nothing.
						} else {
							alert("Please enter a valid email address.");
							return false;
						}
					}
				} else {
				hostDomain[hdIndex] += thisChar;
				}
			}
		if (hdIndex == 0) {
			alert("Please enter a valid email address.");
			return false;
		}
		var alphabet = ['a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z','-'];
		for (var i = 0; i < hostDomain.length; i++) {
			for (var j = 0; j < hostDomain[i].length; j++) {
				var thisChar = hostDomain[i].charAt(j).toLowerCase();
				var isBad = true;
				if (isNaN(parseInt(thisChar))) {
					for (var k = 0; k < alphabet.length; k++) {
						if (thisChar == alphabet[k]) {
							isBad = false;
						}
					}
				} else {
			isBad = false;
			}
			if (isBad) {
				alert("Please enter a valid email address.");
				return false;
			}
		}
	}
	alphabet[alphabet.length] = '_';              //          usernames get more
	alphabet[alphabet.length] = '.';               //          chars than hostnames.
	for (var i = 0; i < userName.length; i++) {
		var thisChar = userName.charAt(i).toLowerCase();
		var isBad = true;
		if (isNaN(parseInt(thisChar))) {
			for (var j = 0; j < alphabet.length; j++) {
				if (thisChar == alphabet[j]) {
					isBad = false;
				}
			}
		} else {
		isBad = false;
		}
		if (isBad) {
			alert("Please enter a valid email address.");
			return false;
		}
	}
	} else {
		alert("Please enter a valid email address.");
		return false;
	}
return true;
}          

document.write('<form name="f237f" action="http://newsletter.horus.be/site/99920k2008/Newsletter.asp?urltogo=&DocID=99920k&langue=FR&site_id=99920k" method="post" onsubmit="return email237Check();">');
//document.write('<font style="font-family:Arial;font-size:8px;color:#000000;">');
document.write('<input type="hidden" name="l" value="237"><input type="hidden" name="a" value=""> ');

document.write('<!--<b>Adresse e-mail</b> : --><div style="text-align:left; margin-bottom:3px;"><!--Recevez gratuitement notre lettre d\'information--></div><input name="e"    value="Entrez votre e-mail" onfocus=\'this.value=""\'  id="champNewsletter"> ');
document.write('<input type="submit" class="boutonNewsletter" value="S\'inscrire" onclick="javascript:document.f237f.a.value=\'s\';" > ');
document.write('<input type="submit" class="boutonNewsletter" value="Se désinscrire" onclick="javascript:document.f237f.a.value=\'u\';" >');

document.write('</font>');
document.write('</form>');